DESCRIPTIONS OF NEW SPECIES. 23 



guishes this from all other species of the genus ; it is more regu- 

 larly oval, and less convex than the others. 



LACCOPHILUS Leach. 



12. Ii. gentilis. Elongato-ovalis, postice sensim magis attenuatus, 

 testaceus nitidus, vix subtilissime punctulatus, thorace ad basin paulo 

 iufuscato, elytris piceis, sutura antice rufescente, epipleuris, fascia 

 interrupta ad quadrantera, maculis duabus lateralibus apiceque testa- 

 ceis ; abdoniine iufuscato. Long. -14. 



Louisiana ; Mr. "Wapler. This beautiful little species is very 

 distinct from all others found in our territory. The transverse 

 band is situated about one-fourth from the base, and consists of 

 a triangular spot upon each elytron, wider towards the suture ; 

 the first marginal spot is a little before the middle, and the se- 

 cond about two-fifths from the tip, which, with the whole of the 

 lateral margin, is pale. • 



HYDATICUS Leach. 



13. H. piceus. Ovalis, modice convexus, rufo-piceus subnitidus, ver- 

 sus latera pallidior, thorace subtilissime rugoso et punctulato, versus 

 basin utrinque punctis paucis linea digestis, elytris subtilissime punc- 

 tulatis, punctisque solitis fere obsoletis ; subtus niger, pedibus anteriori- 

 bus piceo-testaceis. Long. - 50. 



Middle States and Canada. Broader and less regularly ellip- 

 tical than H. bimarginatus. The color above is reddish brown, 

 paler at the margins of the thorax, the sides of the elytra, ami 

 in front of the eyes ; the organs of the mouth, the anterior and 

 middle legs are pale brown ; the 'trunk and abdomen beneath arc 

 nearly black, and the hind legs are dark brown. 



G1RETES Brulle'. 



14. G. colli p re ssus. Elongato-ovalis, valde convexus, niger nitidis- 

 simus, thoracis lateribus elytrorumque inargine latiusculo punctulatis 

 pubescentibus, elytris apice oblique truncatis subsinuatis, angulo ex- 

 ternoobtuso; subtus niger, pedibus obscure piceo-rufis. Long. '25. 



Quincy, Illinois; Mr. AVillcox. Narrower than G. sinuatus, 

 and readily distinguished from all the other species of the genus 

 heretofore described, except the South American G. bidens, by 

 the inflexed margin of the thorax and elytra being black; from 

 the last named species it differs by the outer apical angle of the 

 elytra not being acute and prolonged. 



